If the compilation haven't been updated by the original creator, your best bet would be to download each addon individually, assuming they've been updated.
Updating outdated addons (especially that many) is a big undertaking, if even legal, since the original authors hold copyright unless otherwise stated. I doubt you would get anyone to do it without a serious monetary compensation for their time, or if they have an interest in doing it themselves.
That being said, I know atleast a few addons on your list and they're being updated (skada, oUF, oUF_Freebgrid), so checking that first yourself would be step 1.
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